using System;

using Avalonia.Controls;
using Avalonia.Controls.Templates;

using Zongsoft.Discussions.Presentation.ViewModels;

namespace Zongsoft.Discussions.Presentation;

public class ViewLocator : IDataTemplate
{
	public Control? Build(object? param)
	{
		if(param is null)
			return null;

		var name = param.GetType().FullName!.Replace("ViewModel", "View", StringComparison.Ordinal);
		var type = Type.GetType(name);

		if(type != null)
		{
			return (Control)Activator.CreateInstance(type)!;
		}

		return new TextBlock { Text = "Not Found: " + name };
	}

	public bool Match(object? data)
	{
		return data is ViewModelBase;
	}
}